Mercurial > sdl-ios-xcode
view TODO @ 638:b0108e9dea53
Date: Sun, 11 May 2003 19:59:06 +0300
From: Pasi K?rkk?inen
Subject: [PATCH] fix SDL OpenGL segfault with DRI/Mesa drivers and Glew
Hello!
The attached patch fixes a bug in SDL which causes SDL to crash in
X11_GL_Shutdown() if you are using DRI/Mesa drivers AND glew
(http://glew.sf.net).
The bug is caused by a namespace collision affecting dlsym() to fetch wrong
pointer for glXReleaseBuffersMESA() (uninitialized pointer from glew because
the extension is NOT supported by the driver) and then SDL calling it in
X11_GL_Shutdown().
SDL should check if the glXReleaseBuffersMESA() is really supported by the
driver (from the extensions string) before calling it.
Attached patch adds extension string parsing to check if
glXReleaseBuffersMESA() is really supported (and this way
prevents the segfault).
Availability of the extensions should be _always_ checked from the
extensions string rather than using dlsym()!
Please add it to the next version of SDL.
Thanks to gltron and author of glew to help fixing this.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sat, 28 Jun 2003 17:27:33 +0000 |
| parents | df1d68818edb |
| children | 19418e4422cb |
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Wish list for the 1.3 development branch: * Use /etc/fb.modes, if available, like GGI does * Add mousewheel events (new unified event architecture?) * DirectInput joystick support needs to be implemented * Be able to enumerate and select available audio and video drivers * Fullscreen video mode support for MacOS X * Explicit vertical retrace wait (maybe separate from SDL_Flip?) * Shaped windows, windows without borders * Multiple windows, multiple display support * SDL_INIT_EVENTTHREAD on Windows and MacOS? * Add a timestamp to events * Use RDTSC for timer resolution on x86 hardware * Add audio input API * Add hardware accelerated scaled blit * Add hardware accelerated alpha blits * Redesign blitting architecture to allow blit plugins In the jump from 1.2 to 1.3, we should change the SDL_Rect members to int and evaluate all the rest of the datatypes. This is the only place we should do it though, since the 1.2 series should not break binary compatibility in this way. Requests: * PCM and CDROM volume control (deprecated, but possible)